Máy đo độ PH 703 phòng thí nghiệm - Knick Việt Nam

Equipment Meter with power cord, without sensor

Ranges Cond: 0.000 ... 9.999 µS/cm; 00.00 ... 99.99 µS/cm; 000.0 ... 999.9 µS/cm;

0.000 ... 9.999 mS/cm; 00.00 ... 99.99 mS/cm; 000.0 ... 999.9 mS/cm;

0000 ... 2000 mS/cm; auto-ranging or manual preset*}; °C: –50.0 ... +150.0

Display Alphanumer. 2 x 4-digit, 14-segment LED, character height 13 mm, measurement symbols:

20 °C, 25 °C, µS/cm, mS/cm, %/K, °C, Time, 3 Sensoface icons inform on sensor and

measuring equipment (GLP)

Measuring cycle Approx. 1.5/sec

Measuring frequencies Approx. 40 Hz to 2 kHz, automatic adjustment by conductance

Resolution Up to 0.001 µS/cm

Accuracy!} Cond: <0.5 % meas. value. ±2 counts °C: 0.3 K

Reproducibility!} <0.1 % meas. val.

Temperature compensation –50 ... +150 °C; Pt 1000/NTC 30 kOhm (autom. selection) or manual,

Linear TC characteristic 0.00 ... +9.99 %/K, ref. temperature 20 °C/25 °C selectable

Adm. cell constant 0.001 ... 199.9 cm–!, adjustable

Sensor standardization Operating modes – Automatic by determining the cell constant with NaCl or KCl solution

Calibration solutions: KCl 0.01 mol/l; 0.1 mol/l; 1 mol/l; NaCl 0.01 mol/l; 0.1 mol/l;

saturated – Direct entry of cell constant

Monitoring of sensor Sensoface provides information:

and equipment (GLP) – for selection of 2-electrode sensors

– on too great a difference between reference and measuring temperature

– for handling of 4-electrode sensors

– on clock memory loss

– in case of irregular checking of measuring equipment

Optical display: good/average/poor

Device self-test Test of measuring electronics including recorder output, segment and keypad test, RAM,

EPROM, and EEPROM test during diagnostics, automatic short check at power-on GLP records (ISO 9000) Parameter settings, calibration, device diagnostics

Recorder:  output Galvanically isolated (isolation voltage: 40 V DC, 20 V AC)

Cond: 1 mV/µS · cm–!; 1 mV/mS · cm–!; °C: 10 mV/°C user-defined for printer control

Interface:  RS 232 without control lines, galvanically isolated (isolation voltage: 40 V DC, 20 V AC), user-definable as printer or computer interface,

Baud rate: 600 / 1200 / 2400 / 4800 / 9600*} Data bits/parity: 7/Even, 7/Odd, 8/No*}

Protocol: none, XON/XOFF*} Stop bits: 1

Software:  Control of the Model 703 Laboratory Conductivity Meter is integrated in the automation

software for lab meters “labworldsoft” (Fisher Scientific) for display and control of device functions for Version 4.0 or higher